Photo - check. Ruler - check. As-built Semroc V-2 - check. Mash this stuff up and shove it into RockSim. And this is what you get. Since the Hermes A-1 is not based on a V-2, some additional tweaks may be required. The upper fins seems a tad undersized, but that might be OK. As is, it needs no more nose weight than the Semroc V-2 with the scale fins. I guess the added lower fin tabs off-set the effect of the upper fins. All this needs double checking.